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Adaptation of marine calcifies to a rapid environmental change: Creation of ocean acidification biology

Research Project

Project/Area Number 18H03364
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 63010:Environmental dynamic analysis-related
Research InstitutionNational Museum of Nature and Science, Tokyo

Principal Investigator

Kubota Yoshimi  独立行政法人国立科学博物館, 地学研究部, 研究主幹 (80710946)

Co-Investigator(Kenkyū-buntansha) 木元 克典  国立研究開発法人海洋研究開発機構, 地球環境部門(地球表層システム研究センター), グループリーダー代理 (40359162)
木下 峻一  独立行政法人国立科学博物館, 地学研究部, 日本学術振興会特別研究員PD (40910758)
山口 龍彦  独立行政法人国立科学博物館, 地学研究部, 協力研究員 (80397207)
Project Period (FY) 2018-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000)
Fiscal Year 2021: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2020: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2019: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2018: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Keywords海洋酸性化 / 有孔虫 / pH / PETM / Ocean Acidification / Foraminifers / X-ray tomography / Calcification / 暁新世・始新世境界温暖期 / 貝形虫 / 炭酸カルシウム / CT / 始新世 / マイクロフォーカスX線CT / 微化石 / マイクロX線CT / 浮遊性有孔虫 / 底生有孔虫
Outline of Final Research Achievements

The Paleocene-Eocene thermal maximum (PETM; ~56 million years ago) is a rapid climatic warming event and associated with ocean acidification. At the onset of the PETM, deep-sea benthic foraminifers and ostracodes went extinction and planktic foraminifers and calcareous nannofossils underwent origination. Here we focus on the change in the shell density of fossil planktic foraminifers through the PETM event to elucidate how the planktic foraminifers adapted to the rapid environmental change. The micro-focus X-ray tomography of the planktic foraminifer Subbotina patagonica allows us to estimate the shell density of a foraminifer specimen, that is the intensity of calcification. The shell densities indicate considerable individual variability. The temporal change in the mean shell density has not coincided with changes in sea-surface pH, suggesting that no linear calcification response to ocean acidification.

Academic Significance and Societal Importance of the Research Achievements

産業革命以降の大気中二酸化炭素濃度の上昇に伴い,海洋酸性化とその生物への影響が深刻な問題となりつつある。本研究では, 5600万年前の暁新世・始新世境界温暖期に着目したが,過去の地質時代の事例からは,数十年の観測や実験では知ることができない長期の生物の応答と環境変動からの回復過程での挙動を理解することができる。本研究で明らかにした有孔虫が酸性化耐性を持つという性質は,近年の有孔虫の飼育実験や,研究代表・分担の久保田・木下が見出した比較的低いpHである現在の深海環境でも高密度の殻を形成している事実と矛盾せず,有孔虫が進化の過程で酸性化耐性を獲得してきたことを示唆するものである。

Report

(7 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (26 results)

All 2023 2022 2021 2019 2018 Other

All Int'l Joint Research (6 results) Journal Article (7 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Open Access: 2 results) Presentation (12 results) (of which Int'l Joint Research: 5 results,  Invited: 1 results) Book (1 results)

  • [Int'l Joint Research] University of California San Diego(米国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] University of California San Diego(米国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] University of California San Diego(米国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] University of California San Diego(米国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Scripps Institution of Oceanography(米国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Scripps Institution of Oceanography(米国)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Review: Ocean acidification during the Paleocene-Eocene Thermal Maximum2023

    • Author(s)
      山口 龍彦 , 久保田 好美, 木元 克典
    • Journal Title

      The Journal of the Geological Society of Japan

      Volume: 129 Issue: 1 Pages: 179-197

    • DOI

      10.5575/geosoc.2022.0056

    • ISSN
      0016-7630, 1349-9963
    • Year and Date
      2023-03-14
    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Precise bulk density measurement of planktonic foraminiferal test by X-ray microcomputed tomography2023

    • Author(s)
      Kimoto Katsunori、Horiuchi Rika、Sasaki Osamu、Iwashita Tomohiro
    • Journal Title

      Frontiers in Earth Science

      Volume: 11

    • DOI

      10.3389/feart.2023.1184671

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] μ-Computed tomographic data of fossil planktonic foraminifera from the western Pacific Ocean: a dataset concerning two biostratigraphic events during the Early Pleistocene2023

    • Author(s)
      Chen Wei-Lun、Kang Jia-Cih、Kimoto Katsunori、Song Yen-Fang、Yin Gung-Chian、Swisher Robert E.、Lu Chen-Han、Kuo Li-Wei、Huang Jyh-Jaan Steven、Lo Li
    • Journal Title

      Frontiers in Ecology and Evolution

      Volume: 11

    • DOI

      10.3389/fevo.2023.1171891

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Constant shell density of hyaline large benthic foraminifers under thermal stress2023

    • Author(s)
      Kinoshita, S., Kuroyanagi, A., Kawahata, H., Fujita, K., Ishimura, T., Suzuki, A., Kano, H., Kubota, Y. and Nishi, H.
    • Journal Title

      Marine Micropaleontology

      Volume: 181 Pages: 102232-102232

    • DOI

      10.1016/j.marmicro.2023.102232

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Response of Planktic Foraminiferal Shells to Ocean Acidification and Global Warming Assessed Using Micro-X-Ray Computed Tomography2022

    • Author(s)
      Kinoshita Shunichi、Wang Quan、Kuroyanagi Azumi、Murayama Masafumi、Ujiie Yurika、Kawahata Hodaka
    • Journal Title

      Paleontological Research

      Volume: 26 Issue: 4 Pages: 390-404

    • DOI

      10.2517/pr200043

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Valve calcification in the evolutionary history of marine ostracodes (Ostracoda)2019

    • Author(s)
      Yamaguchi Tatsuhiko
    • Journal Title

      Journal of Crustacean Biology

      Volume: * Issue: 3 Pages: 253-260

    • DOI

      10.1093/jcbiol/ruy086

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 海洋酸性化と生物影響2018

    • Author(s)
      木元克典
    • Journal Title

      日本機械学会誌

      Volume: 121 Pages: 18-21

    • Related Report
      2018 Annual Research Report
  • [Presentation] Calcification response of the planktic foraminifer during the Paleocene-Eocene thermal maximum2023

    • Author(s)
      Kubota, Y., K. Kimoto, T. Yamaguchi, S. Kinoshita, R. D. Norris
    • Organizer
      2nd Asian Paleontologocal Congress
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Three-dimensional parameters (volume and density) of planktonic foraminiferal fossils in the core as potential paleoenvironmental proxies2023

    • Author(s)
      Kinoshita S, Wang Q, Kuroyanagi A, Murayama M, Ujiie Y, Kawahata H,
    • Organizer
      Japan Geoscience Union Meeting 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Calcification response of the planktic foraminifer during the Paleocene-Eocene thermal maximum2023

    • Author(s)
      Kubota, Y., K. Kimoto, T. Yamaguchi, S. Kinoshita, R. D. Norris
    • Organizer
      Japan Geoscience Union Meeting 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 化石から探る過去の海洋酸性化が生命に与えた影響:有孔虫化石の解析からひもとく海洋酸性化の歴史2023

    • Author(s)
      久保田 好美
    • Organizer
      日本生理学会第100回記念大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Effects on shell quality of large benthic foraminifers under different temperature conditions2022

    • Author(s)
      Kinoshita S, Kuroyanagi A, Nishi H, Fujita K, Suzuki A, Kawahata H
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] Decrease in shell volume of large benthic foraminifers with progressing ocean warming2022

    • Author(s)
      Kinoshita S, Kuroyanagi A, Nishi H, Fujita K, Suzuki A, Kawahata H
    • Organizer
      EGU General Assembly 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] マイクロフォーカス X 線 CT による大型底生有孔虫研究の現状とこれから2022

    • Author(s)
      木下 峻一
    • Organizer
      地球環境史学会2022年度年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 過去の環境を解き明かす有孔虫化石~プランクトン学と古気候学の連携にむけて~2021

    • Author(s)
      久保田好美
    • Organizer
      日本プランクトン学会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Effects of environmental changes on planktic foraminiferal shells assessed by the investigation of micro-X-ray CT2021

    • Author(s)
      Kinoshita, S., Wang, Q., Kuroyanagi, A., Murayama, M., Ujiie, Y., Kawahata, H.
    • Organizer
      Japan Geoscience Union Meeting 2021
    • Related Report
      2021 Annual Research Report
  • [Presentation] 暁新世・始新世境界温暖期における浮遊性有孔虫の炭酸塩殻密度2021

    • Author(s)
      久保田好美・木元克典・山口龍彦・堀内里香・Richard D. Norris
    • Organizer
      日本古生物学会第 170 回例会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 微化石試料の自動X線形態計測2019

    • Author(s)
      木元克典、佐々木理、岩下智洋
    • Organizer
      MRC微化石研究集会2019つくば大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Technical development of Micro X-ray Computed Tomography (MXCT) and research activity on ocean acidification in the western Arctic Ocean2019

    • Author(s)
      Katsunori Kimoto, Jonaotaro Onodera, Koji Sugie, Naomi Harada
    • Organizer
      ArCS Workshop for Promoting Arctic Collaboration between IARC/UAF and Japan
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Book] 「深海 極限の世界 生命と地球の謎に迫る」海洋酸性化と深層循環2019

    • Author(s)
      木元克典
    • Total Pages
      14
    • Publisher
      講談社ブルーバックス
    • Related Report
      2018 Annual Research Report

URL: 

Published: 2018-04-23   Modified: 2025-01-30  

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